Lijiang sits at about 2,400 metres. That is high enough to make stairs feel harder and sleep lighter, but low enough that most travellers adapt within a day. Jade Dragon's Glacier Park cableway goes to 4,506 metres, where the air is thin enough to cause real symptoms. The difference between the two is the whole story.
In short
Acclimatise in the basin for a day, go slowly at altitude, drink water, skip alcohol before the mountain, and descend immediately if symptoms worsen. People with heart or lung conditions should not ride to 4,500 metres.
What altitude does
At 2,400 metres, the effective oxygen is about 75 percent of sea level. Most people notice breathlessness on stairs, a dry throat, and lighter sleep. These are normal. At 3,500 metres the oxygen is around 65 percent, and at 4,500 metres around 60 percent, which is where acute mountain sickness becomes common.
Symptoms include headache, nausea, dizziness, fatigue, and poor sleep. Severe cases involve confusion, breathlessness at rest, and fluid in the lungs. The treatment is simple and non-negotiable: descend. Do not wait for it to pass at the top of a cableway.
Acclimatising well
Give yourself a day in Lijiang before the mountain. Walk rather than rush, drink more water than usual, and avoid alcohol on the first night. Eat normally; carbohydrates help. Sleep may be light for a night or two, which is normal.
On the mountain, ascend slowly, take the boardwalk at a gentle pace, and turn back if you feel unwell. Canned oxygen can relieve a headache but does not solve the underlying problem. Do not rely on it to push higher.
Who should skip the summit
People with heart disease, uncontrolled hypertension, lung disease, severe anaemia, pregnancy, or recent surgery should not go to 4,500 metres. Children under about six are usually advised against it. If you have a cold or chest infection, postpone the mountain.
The lower areas — Blue Moon Valley at 2,800 metres, Ganhaizi at 3,100 metres, Spruce Meadow at 3,240 metres — are much safer and still spectacular. The mountain planner offers lower-altitude plans. If in doubt, ask a doctor before you travel.
Verdict
Treat 4,500 metres with respect and 2,400 metres with patience; descend first, ask questions later.
Next in the manual
04 linksField desk / direct line
Not sure this fits your trip?
Send the dates, the group, and what you are deciding between. The field desk will tell you what to cut and what to keep.
Independent advice. No bookings, no commissions, no visa service.